Ito San Master Japanese Carpenter Tapping Out a Kana Blade

[deezynar]

I've wondered how they deal with the hollow ground back getting into the blade edge after many sharpenings. I thought the Japanese blade edges were hard and brittle and would crack if bent cold. Obviously I was wrong about that. I think the hollow grind is a disadvantage for Japanese planes and chisels. It's not needed and creates more trouble than it's worth.

[ps12wM]

@deezynar you haven't read a great explanation from Odate then if you think its not needed; it aids the sharpening process.

[deezynar]

@ps12wM

It is not needed. If you were familiar w/ Western blade sharpening methods you'd know there is a simple way to flatten & sharpen only the minimum area needed on the back of a blade.

[jjmqwerty]

i could never get used to the string knitted gloves they use in japan and other asian countries.

[Festool4]

Interesting - there is so much we could learn from these guys.